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    Subject[PATCH 5.4 12/96] scsi: ufs: Fix ufshcd_probe_hba() reture value in case ufshcd_scsi_add_wlus() fails
    Date
    From: Bean Huo <beanhuo@micron.com>

    commit b9fc5320212efdfb4e08b825aaa007815fd11d16 upstream.

    A non-zero error value likely being returned by ufshcd_scsi_add_wlus() in
    case of failure of adding the WLs, but ufshcd_probe_hba() doesn't use this
    value, and doesn't report this failure to upper caller. This patch is to
    fix this issue.

    Fixes: 2a8fa600445c ("ufs: manually add well known logical units")
    Link: https://lore.kernel.org/r/20200120130820.1737-2-huobean@gmail.com
    Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
    Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
    Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
    Signed-off-by: Bean Huo <beanhuo@micron.com>
    Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    drivers/scsi/ufs/ufshcd.c | 3 ++-
    1 file changed, 2 insertions(+), 1 deletion(-)

    --- a/drivers/scsi/ufs/ufshcd.c
    +++ b/drivers/scsi/ufs/ufshcd.c
    @@ -6953,7 +6953,8 @@ static int ufshcd_probe_hba(struct ufs_h
    ufshcd_init_icc_levels(hba);

    /* Add required well known logical units to scsi mid layer */
    - if (ufshcd_scsi_add_wlus(hba))
    + ret = ufshcd_scsi_add_wlus(hba);
    + if (ret)
    goto out;

    /* Initialize devfreq after UFS device is detected */

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